61501188060608 has 56 divisors (see below), whose sum is σ = 127925436574320. Its totient is φ = 29302891591680.

The previous prime is 61501188060607. The next prime is 61501188060659. The reversal of 61501188060608 is 80606088110516.

It is a super-2 number, since 2×61501188060608² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61501188060607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272421503 + ... + 272647166.

It is an arithmetic number, because the mean of its divisors is an integer number (2284382795970).

Almost surely, 2^{61501188060608} is an apocalyptic number.

It is an amenable number.

61501188060608 is an abundant number, since it is smaller than the sum of its proper divisors (66424248513712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61501188060608 is a wasteful number, since it uses less digits than its factorization.

61501188060608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545068765 (or 545068755 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 50.

The spelling of 61501188060608 in words is "sixty-one trillion, five hundred one billion, one hundred eighty-eight million, sixty thousand, six hundred eight".